The act of trading in any collectible that is graded, vacuum sealed in a lucite case or comes with a Certificate of Authenticity. i.e. Sports cards, comic books, toys, NASCAR commemorative plates, Civil War themed Chess sets, Beanie Babies, anything with the words "Star" and "Wars"...
The value of these items can rise and fall on a whim, but in the end they have no true value, despite what your monthly Beckett or Wizard guides may lead you to believe.

Dow sets all-time high; Blue-chip indicator manages highest close ever, taking out a 6-1/2-year-old record; falling oil is the catalyst; and good news for those holding Tickle Me Elmos in the White Trash Stock Market sector.